Stability of auditory evoked potentials in adults with normal hearing

Revista da Sociedade Brasileira de Fonoaudiologia

Matas, Carla Gentile¹  Hataiama, Natália Moribe¹  Gonçalves, Isabela Crivellaro¹ 

关键词: Hearing tests;    Hearing;    Evoked potentials;    auditory;    Event-related potentials;    P300;    Adult;   

DOI  :  10.1590/S1516-80342011000100008

来源: Sociedade Brasileira de Fonoaudiologia

【 摘 要 】

PURPOSE: To evaluate the stability of parameters of auditory evoked potentials in normal adults.METHODS: Forty-nine normal subjects with ages from 18 to 40 years (25 females and 24 males) were submitted to audiological and electrophysiological hearing evaluation (auditory brainstem response - ABR, middle latency response - MLR, and cognitive potential - P300). Subjects were reassessed three months after the initial evaluation.RESULTS: Significant differences were observed between genders regarding the wave latencies III and V and the interpeaks I-III and I-IV of ABR, and the amplitude N2-P3 of the P300. No differences were found between the results of initial and final assessments for the parameters of the ABR, MLR (Na, Pa latencies and Na-Pa amplitude) and P300 (P300 latency).CONCLUSION: Except for the N2-P3 amplitude, it was observed stability of the parameters of ABR, MLR and P300 in normal adults after a period of three months.

【 授权许可】

Unknown